Alternating Bristle Carrier System for Rotary Sweeping Brushes
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Solution Overview
Problem
Rotary brushes used for cleaning paved surfaces, such as airport runways, experience mechanical stress and reduced service life due to the alternating impact of metal and plastic bristles, leading to vibrations and shocks during operation.
Innovation Solution
A bristle carrier system with a large number of receiving profiles on the roller body, allowing for an alternating arrangement of tufts with different material properties in the axial direction, reducing mechanical stress and vibrations by ensuring constant mechanical resistance during operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If metal and plastic bristles are arranged alternately in the circumferential direction of the roller body, then cleaning performance is improved by utilizing different material properties for different surfaces, but mechanical stress and vibrations increase due to different flexural strengths causing shocks during operation
Solution Approach 1:
The patent transitions from alternating bristle types in the circumferential direction (horizontal arrangement) to alternating bristle types in the axial direction (vertical arrangement along the roller body). This dimensional change allows each circumferential row to contain bristles of uniform material properties, eliminating the vibration problem while preserving the cleaning versatility of having both metal and plastic bristles on the roller body.
2Productivity
If the roller body is equipped with multiple bristle carriers having different material properties in the circumferential direction, then cleaning effectiveness is improved, but the service life and maintenance intervals are reduced due to increased mechanical stress on components
Solution Approach 1:
The invention reorganizes the alternating pattern of different bristle materials from the circumferential direction to the axial direction. This allows the roller body to maintain diverse cleaning capabilities through multiple bristle carriers while ensuring that each circumferential row experiences uniform mechanical resistance, thereby extending service life and maintenance intervals.
3Adaptability or versatility
If bristles of different material properties are arranged alternately in rows, then cleaning performance is improved, but shocks and vibrations are generated that require stable and robust design of the sweeper components
Solution Approach 1:
By changing the arrangement dimension from circumferential to axial, the patent eliminates the need for overly robust and complex sweeper design. Each circumferential row now contains bristles of the same material properties, providing uniform mechanical resistance and reducing shocks and vibrations to levels that do not require excessive design robustness.
Data Source
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AI summary
The present invention relates to a bristle carrier and to a bristle carrier system for a rotation brush (10) which has a roll body (12) and, on the outer circumference of the roll body (12), has at least one receiving profile (14) for the releasable fastening of the bristle carrier (16, 26; 28, 30; 32, 34), wherein the bristle carrier (16, 26; 28, 30; 32, 34) has a fastening profile (22) which corresponds to the receiving profile (14) of the roll body (12) and is provided for forming a form-fitting connection of the bristle carrier (16, 26; 28, 30; 32, 34) and roll body (12). The bristle carrier (16, 26; 28, 30; 32, 34) has receiving openings which are spaced apart from one another in the profile longitudinal direction (4) and are each equipped with bristle bundles (18, 20), the bristles (6, 8) have at least two different material properties.